The hydrotransformer, 2 planetary reducers hydraulically connected with multidisk couplings and a tape brake are a part of automatic transmission. In one case with automatic transmission the main transfer and differential which design differs in nothing from these units on the manual transmission is mounted. For sharp dispersal of the car (with full opening of a butterfly valve) with automatic switching to the lowest transfer so-called kick - down - the mode is provided. Switching of automatic transmission in this mode is provided with the cable fixed on the sector of a throttle branch pipe. Transmission liquid is cooled in the separate heat exchanger which is built in a radiator. Diagnostics and repair of automatic transmission is carried out in car service.